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Introduction
The front bulkhead (circled in red below) is one of two bulkheads present within the car. It provides structural integrity to the whole assembly and thus, must be tested to make sure that it reaches the standards we set for it to achieve.
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We will attempt to use the figure above when determining which test we would like to use. This was acquired from the asc regulations and it outlines where the car must survive an impact. As you can see, there are many cases where it hits the front of the car. As you can imagine, trying to recreate a test that strikes the bulkhead at such an odd angle would be very difficult, if not impossible. This is why I have decided that we should just focus on the cases where it hits the car in a more simple manner such as directly from the top, directly in front, and directly beside it. We will probably want to test compressive, shear, and tensile properties so that is why I have chosen the three testing standards that we will emulate below.
Procedures for
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tests
Below, I have inserted the three tests we are planning on doing in the three sections below. With them, I have also given a link to the summarized version of each testing standard if you wish to acquire more information.
Note that I have not included the whole procedure of each test below, I have just included what I feel is needed for a general idea of what will be done.
ASTM C393 Standard Test Method for Shear Strength
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Variable | Quantity |
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Load rate | 6mm/min |
Failure occurence | 3-6 minutes |
Support bar separation | 150 mm |
ASTM D3039 Standard Test Methods for Tensile Properties
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Variable | Quantity |
Failure occurence | 1 to 10 min |
Head displacement | 2mm/min |
ASTM D3410 Standard Test Method for Compressive Properties of Polymer Matric Composite Materials
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